Pressure collapsible closed cellular swell packer

A method comprising:

• providing a packer comprising:
• a substantially tubular member;
• and
• a seal element disposed on the substantially tubular member, the seal element comprising a swellable elastomeric material that comprises:
• a closed cell structure having a plurality of pore spaces therein;
• and
• a compressible gas located within at least a portion of the plurality of pore spaces, the compressible gas given by a blowing agent that chemically reacts in vulcanization of the elastomeric swellable material, wherein the blowing agent comprises at least one of azodicarbonamide, dinitroso pentamethylene tetramine, or p-Toluenesulphonyl hydrazide, and wherein the elastomeric swellable material comprises microspheres containing additional compressible gas;
• placing the packer in at least a portion of a wellbore penetrating at least a portion of a subterranean formation to form a seal in the wellbore;
• and
• crushing the microspheres by applying pressure to the swellable elastomeric material with a fluid in the wellbore, thereby releasing the additional compressible gas in the swellable elastomeric material while maintaining the seal in the wellbore, wherein the swellable elastomeric material comprises at least one swellable polymer selected from the group consisting of:
• nitrile butadiene rubber (NBR), styrene butadiene rubber (SBR), butadiene rubber (BR), high consistency silicone rubber (HCR), fluorinated ethylene propylene monomer (FEPM) rubber, ethylene propylene (EP) rubber, ethylene propylene diene monomer (EPDM) rubber, polychloroprene, chloroprene rubber (CR), polyurethane (PU), an epoxy thermoset, butyl rubber, isobutylene-isoprene rubber (IIR), halobutyl rubber, chlorobutyl rubber (CIIR), bromobutyl rubber (BIIR), chlorinated polyethylene (CPE), ethyl acrylate copolymer (EAC), and epichlorohydrin rubber (ECO).